The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called Relative yield Operational yield None of these Selectivity TRUE ANSWER : ? YOUR ANSWER : ?
What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only? Zero Third First Second TRUE ANSWER : ? YOUR ANSWER : ?
Limiting reactant in a chemical reaction decides the Rate constant Equilibrium constant Reaction speed Conversion TRUE ANSWER : ? YOUR ANSWER : ?
The fractional volume change of the system for the isothermal gas phase reaction, A 3B , between no conversion and complete conversion is 1 0.5 3 2 TRUE ANSWER : ? YOUR ANSWER : ?
In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole. 1000 100 10000 100000 TRUE ANSWER : ? YOUR ANSWER : ?
If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion. Film None of these Pore Ash layer TRUE ANSWER : ? YOUR ANSWER : ?
In a reversible reaction, a catalyst increases the rate of forward reaction To a greater extent than that of the backward reaction Only And decreases that of the backward reaction And the backward reaction equally TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a characteristic of an ideal plug flow reactor? Flat velocity profile Uniform mixing Axial dispersion None of these TRUE ANSWER : ? YOUR ANSWER : ?
For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor. Fixed bed Tubular flow Stirred tank Batch TRUE ANSWER : ? YOUR ANSWER : ?
The space time is equivalent to the holding time in a steady state mixed reactor for Constant fluid density systems Gas reactions with changing no. of moles Non-isothermal gas reaction Variable fluid density systems TRUE ANSWER : ? YOUR ANSWER : ?